Replace the clip-path composition of the desktop SVG with a real <img> that references the artist-supplied mobile-work-vector.svg. Drop the CSS-layer trick and the ::before/::after background pieces; the new mobile SVG already covers the composition. Update the linework composition test to assert against the new <img>.
Render mobile-contact-vector.svg alongside the existing contact linework. CSS hides the desktop SVG and shows the mobile <img> at <=767px so the new 342x187 composition fills the card width. Update the geometry test to assert the new linework ratio (342/187) and the snapshot.
Swap pullquote-mobile-linework.png for the artist-supplied mobile-pullquote-vector.svg at the existing pull-quote__vector--mobile slot. Update the visual snapshots to match the new artwork.
Keith Solomon